What is the charge and position of of the proton within the atom?

What is the coefficient of kinetic friction μk between the block and the tabletop?

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

Ain is , is 's of ? 0.62 0.79 1.27 1.50